Rock-drill.



I PATENTED APR. 17, 1906.

R. BINNIB'; Sn. ROCK DRILL APPLICATION FILED AUG.26.1905.

4 sums-511521: 1

\NVENTOR.

7 fi wMfl/J dd M7 Nnvmls mu; m; ummiAsm mam) c No. 818,015. PATENTED APR. 1'7, 1906. R. BINNIE. SR.

ROCK DRILL.

APPLICATION FILED AUG.Z6.19'05 4 SHEETSSHEET 4.

FIG. 12

Z i I 0.

SSS-1H, FIG. 13

WITNESSES. myzmoa.

' be set vertically or in any other position, ee-

a side elevation of my improv'ed rock-drill. Fig. 2 1s a vertical section of the (lIlll body or s 'uitable nut 6, connected to the drillbody.

ROBERT BINNIE, SR, OF BOLIVAR, PENNSYLVANIA.

ROCK-DRILL.

Specification of Letters Patent.

Patented April 1'7, 1906.

Application filed August 26,1905. Serial No. 275,906

To all 1012,0112, it 7121111 concern:

Be. it known that 1, ROBERT BIXNIE, Sr., a resident of Bolivar, in the State of Pennsyl- Vania, have invented a new and useful Improvement in Rock-Drills; and I do hereby declare thefollowing to be a full, clear, and exact description thereof.

This invention relates to rock-drills; and its object is to provide a simple, strong, durable, and eliicient device of this character which is driven by a motor mounted directly thereon.

The invention. resides in details of construotion and. arrangement hereinafter described and claimed.

In the accompanying drawings, Figure 1 is casing. Fig. 3 is a similar section on the line 3 3, Fig. 1. Fig. it is a horizontal section 011 the line 4 1, Fig. 1. Fig. 5 is a similar sect-ion on line 5 5, Fig. 1. Fig 6 is a rear view of the motor and its mounting. Figs. 7 and 8 are detail views of the cushioning means for the motor-trunnions. Fig. 9 is a detail of gearcasing and motor-casing neck. Fig. 10 is a sectional view of connection for pitman-rozl, and Figs. 1-1, 12, and 13 are detailviews of the tripod.

'My improved drill comprises a suitable support or tripod 1, having secured thereto the backbone or guide 2, whichis adapted to cording to the direction of the hole to. be drilled: This backbone is provided with suitable ways 3, on which is slid-ably mounted the drill body or casing 4.. A screw 5 is rotatably mounted in the backbone 2, so as to beincapable of'longitudinal movement therelnfas by means of collar5, and engages a This screw serves'to feed the drill to its work and may be actuated either by means of a handle 7 or automatically, as will be hereinafter described.

In the drill-body is mounted the vertical reciprocating drill-spindle 9, which at its lower end carries a socket or chuck 10 for receiving the drill-bit 11. This drill-spindle is guided by a bushing 12 in the lower end oi' the casing and by a sleeve 13, rotatablv mounted inthe upper endoi' the casing. I Mounted in the casing and extending transvcrsely of the spindle is the driving-shaft 14. l

which is provided with a crank 15 for re-; ceiving the connecting-rod 1G, wh|ch at its 1 lower end is of angle shape, so as-to provide a cup 17, which loosely encircles the drillspindle 9. 7 Also loosely surrounding the drillspindle and resting in the cup 17 is a flan ed collar 18. Interposed between thisco lar and a collar 19, keyed to the drill-spindle, is a spiral spring 20. Also loosely surrounding the spindle below the cup 17 is a collar 21, and interposed between this collar and the stationary collar .22 on the drill spindle is a spiral spring 23. The upper and lower faces of the cup on the end of the connecting-rod 16 are spherical, as shown, so that the connecting-rod can rock freely and without undue friction on the collars 17 and 21.

The collars 17 and 21 and interposed lower end of the connecting-rod are free to move on the drill-spindle, and the motion of said connecting-rod is communicated to the spindle through the springs and 23, thus giving a vlielding or cushioned blow to the drill-spind e..

The connecting-rod is fastened to the crank 15 by means of a U-shaped strap 26, which passes around the crank and has its endsconnected to the pitman-rod 16 by means of the keys 26 and 27.

The upper end of the spindle rojects through the sleeve 13, as stated. Tlie spindie and the opening of the sleeve are square in cross-section or of other irregular shape, so they must turn in unison. The sleeve 13 has cast therewith or connected thereto a Wormwheel 30, which meshes with a Worm 31 on the driving-shaft 14'. The rotation of said shaft thereforeimparts a slow rotary movement to the sleeve 13 and likewise to the drillspindle.

The projecting upper end of the spindle is inclosed by means of a cap 32. The extreme upper end of the spindle has secured thereto a collar 33. On said spindle between said collar .and the upper end of the casing 4 is a ring or sleeve 34, provided on one side with IOO an-arm 35, pivoted on a pin 36 in theoap 32.

cured to the nut 6, workingon'theadjusting screw 5. A spiral spring 40 is connected to this pawl and to the cap 32 -a'nd 'servesnot nient with the ratchet-wheel, but also serves only to hold the endof the pawl in engageto withdrawthe pawl and tilt the ring-34 to the position shown in Fig. 3, swinging the same-around its pivot 36, so that the oppositeedge 37' thereof will be elevated." Consequently on the downstroke of the spindle sleeve seen its ivot'36 tot e inclined position shown for t e next actuation by the col lar 33. This step-by-step rotation of the ratchet-wheel is communicated to the nut 6.

1' 5 and acts to feed the drill-body on the backs bone in a well-understood Way.

A'The crank-shaft 14 is drivenby means of a motor-mounted directly on the drill body or casing 4. Thismotor may be of any suitzo-able type, .but preferably will be an electric motor, as illustrated. This 'motor is shown at 42; Its armature-shaft is arranged transversely of the drill-spindle and isprovided with a pinion 42*, which meshes with the idler 43, which in turn meshes witn the gear 44 on the end of the driving-shaft 14. All

a of these gears are straight or spur gears, so

that friction is reduced to a minimum, and

' the proper mesh of said gears is not affected 0 .by theendwise vibration of the armatureshaft. This manner of mounting and conpecting the motor has many advantages over .prior arrangements, wherein the motorshaft has been connected to the driving 3 5 shaft by interposed beveled gears.

The motor-casing'is provided with trunnions 46, which are mounted in the arm of a yoke 47, secured to the drill body or casing 4. The ends of the arms of this yoke'are provided withseats 48 for receiving-bearings 49, surrounding the trunnions 46. Spiral springs are interposed between the-bearings 49 and the yoke, so as to cushion these trun' nions in all directions. Preferably these 'sprin s will surround plun ers 50, as illus- 1 trate -in Figs. 7 and 8. lso surrounding the trunnions 46 and interposed between the motor-body and the yoke are suitable cushions, such as rubber rings 52, which cushion 50 any vibration of the motor axially of the trunnions. The motor body therefore is thoroughly cushioned against the movement due to the vibration ofthe drill-spindle.

To permit the ready removal of the motor,

the ends of the yokes are closed by means of clamping members 54, hinged at one end to the yoke and being clamped in closed position at their opposite end by means of a link 55, provided with the actuating-handle 56.

6o Either the member 54 or the link 55,0r both,

are rovided with inclined or cam faces.

T e gears 42,43, and 44 are inclosed by a suitable gear case or shield 60, which is removably secured to the drill body 4 by means of bolts 60. This gear-casing on its and the lower end ofthe drill-casing. When inner sideis provided'with a flange 61-, which surrounds the neck 62 of the motor-body. One portion of this fiang-enis stationary, while anot er portion 63 is ged, as at 64, (see Fig-9,) and is locked by means of a latch 65. 7o- Bearing against the neck of the motor are a pair of curved plates 66 and 67, and interposed between these plates and the flanges 61 and 63 are spiral springs 68, which at their" inner ends bear against the lates and are seated in sockets 69, forms .in plugs 70, screwed into openings formed in the flanges 6]. and 63, so thatby turning said plugs the tension'of these springs canine varied, Rivets 71 unite theplates, sprin' s,- and plugs.

These springs act to cushion t eneck of the motor-casing and to hold the same yieldingly, thus preventing undue shock or vibration between the gears 42 and 43. [The gear 43 is mounted ona pin 72 in the gear-case 60.

The motor is mounted directly on the drillbody and is fed with the same as the-drilling progresses. It is thoroughly cushioned against jar and vibration, is so mounted that it can be quickly removed when desired, and is connected to the driving-shaft 14 i) very simple gearing which cannot get out o order, which is ailected by the vibration of the motor-sh ft, and which runs with a mini- 7 mum amount of friction, thus preventing 9 5 loss of power and overheating, and also dispensin'g with the troublesome fiexible'or slidmg shafts heretofore used. 1 For drilling upwardly a spiral sprin '73 is interposed between the chuck or-soc .et'lO doing deep drilling, however, this spring is removed and in place thereof use is made of a spring for counterbalancing the weight of the additional length of drill. This counterbah' ancing-sprin 1s shown at 75 and is located at the rear of t e bodyand between the same and the backbone 2. At its'upper end it is connected to a hook or lug 77 on. the body 4, sea at its lower end it is rovided with 'a loop 78, which is connects .to a hook 79, loosely surrounding the-drilhsp' die between the upper end 0f the sochet'ortt tick 1G and a collar 80, clam ed to the drill spin dle. This spring counter alances the excessive weight of heavy or long drills, and therefore relieves the actuatin -springs 20 and 23 of the crushing effect of t is weight. It makes it possible to drill very deep holes Said spring at its lower end is confined by the ides 81.

The tripod 1 is provided'with three legs, as shown, each ofwhich is a tube split at its lower end, as shown at 83, to receive the extensible foot rods 84, which are clamped in position by means of nuts 85, working on the threaded split lower end of the tubes. The weights 86 are provided with 'U-shaped recesses for embracing the l 1 and are held in place merely by gravity. heyare provided with ribs 87, which serve as handles for re 13 moving the same. The head 88 of the tripod is provided with circular end portions 89 for receiving straps 90, which surround the same and the ends of which are adapted to be pressed together by means of bolts 91. These same bolts serve to secure to said strap the forward legs of the tripod. The head is also provided with two rearwardly projecting arms 93, between which is pivoted a socket member 94, in which is secured the upper end of the rear leg of the tripod. The rear leg is capable only of a swinging movement :bot'ound its pivot 95, while thefront legs can swing around the necks 89 and also have a lateral swinging movement around the bolts 91. Se cured to the head, between the arms 88, a member 97, which is formed in two sections hinged at their lower ends by means of the bolt 98 and at their upper ends being clamped together by means of a bolt 99. This bolt 99 also passes into the backbone 1 of the machine, and thus supports the same and permits the backbone to be set at any angle, so that the drill can point in any direction.

The drill-feeding mechanism and drill-actuating mechanism are not claimed in this a plication, 'but are claimed inmy application, Serial No. 219,127, filed August 1, 1.904.

What I claim is- 1 In a drill, the combination of a support, a drill body or casing movably mounted thereon, a reciprocating drill-spindle mounted in said casing, anactuatin -shaft for said spindle also mounted in t e casing, a motor mounted directly on the casing on trunnions at right angles to the actuating-shaft, cushioning means between said trunnions and the casing, and gearing connecting said motor and drill-actuating shaft.

2. In a drill, the combination of a support, a drill body or casing movably mounted therea reciprocating drill-spindle mounted in said casing, an actuating-shaft for said spindle mounted in the casing, a motor mounted directly on the casing on trunnions at right angles to its shaft and with its shaft parallel to the actuating-shaft, cushioning means between the motor. trunnions and casing, and gearin connecting said motor and drill-actu ating shaft.

3. In a drill, the combination of a movable body or casing, a drill-spindle mounted therein, an actuating shaft therefor, a motor mounted on the casing on trunnions trans-- verse to its shaft and w1tl1 its shaft parallel to the drill-actuating shaft, spur-gears connecting said shafts, and cushioning'means for the motor-shaft adjacent to said gears and arranged to permit one of said gears to roll on the other.

4. In a drill, the combination of a movable body or casing, a drill-spindle mounted therein, an actuating shaft therefor, a motor mounted on the casing on trunnions'transverse to its shaft and with its shaftparallel to the actuating-shaft, spur-gears connecting said shafts, cushioning means between the motor trunnions and casing, and cushioning means for the motor-shaft adjacent to the gears.

5. In a'drill, the combination of a support, a drill body or casing'movabiy mounted there.- on, a reciprocating drill-spindle mounted in said casing, an actuating-shaft therefor, a motor, the motor-shaft and actuating-shaft being transverse to the line of reciprocation of the drill, gearing connecting said shafts, trunnions onsaid motor, a yoke on the casing provided with bearings for said trunnions, and cushioning means between said yoke and trunnions.

6. In a drill, the combination of a support,

a drill body or casing n iovably mounted t ereon, a reciprocating drill-spindle mounted in said casing, an actuating-shaft therefor, a motor provided with trunnions, seats on the casing for receiving said trunnions, cushioning means between said seats and trunnions, gearing connecting the motor-shaft with the drill-actuatingshaft, and cushioning means for said motor adjacent to said gear- 7. In a drill, the combination of a support, a drill body or casing movably mounted thereon, a reciprocating drill spindle mounted in'said casing, an actuating-shaft therefor, a motor, said motor-shaft and actuatingshaft being transverse to the line of reciprocation of the drill, gearing connecting said shafts, trunnions on the.motor-body, seats on the casing for receiving said trunnions, cushioning means between said seats and trunnions, and cushioning means for the motor-shaft adjacent to said gearing.

8. In a drill, the combination of a sup ort, a drill body orcasing mo vably mounted t ereon, a reciprocating drill -spindle mounted in said casing, an actuating-shaft'tlterefor, a motor yieldingly mounted. on the casing and movable therewith, gearing connecting said motor and drill-actuating shaft, and springs supporting said motor adjacent to said gearing.

9. In a drill, the combination of a sup ort, a drijl body or easing movably mounted 1; mmon, a reciprocating drill-spindle mounted in said casing, an actuating-shaft therefor, a motor, gearing between said motor and ac tuating-shaft, trunnions on said motor, seats on the casing for receiving said trunnions, springs between said trunnions and seats, and springs adjacent to'the gearin connecting the same to the drill-actuating shaft.

10. In a drill, the combination of a support, a drill body or casing movably mounted thereon, a reciprocating drill-spindle mounted in said body, an actuating-shaft therefor, a motor, gearing connecting the same with said drill-actuating shaft, trunnions on said bearing against the motor-body motor, bearin sn the casing for receiving said trunnions, said bearings being provided "with a movable cap, and cam-actuated means for locking said cap inposition;

11. In a drill, the combination of a support, a drill body or casing movably mounted "thereon, a reciprocating drill-spindle mounted'in said casing, an actuating-shaft therefor, a motor,.gearing connecting said motor and drill-actuating shaft, trunnionson said motor, bearings on the casing for receiving said trunnions, a hinged cap for said bearings, and

loam-actuated locking means for the vfree end of said capQ 12., In a drill, the combination, of a body 91' casing, a reciprocating drill-spindle .mounted therein, a motor for actuating said spindle, said motor being provided with trunnions, bearings for said trunnions, said bearingsbeing provided -with a movable cap, and cam-actuated locking means-for said cap.

13. In a drill, the combination of a casing or body, a reciprocating drill-spindle therein,

a motor for actuating said spindle, trunnions on said motor transverse to 1ts axis, seats on the casing for receiving said trunnions, cushioning means between said seats and trun- -mgs, and springs interposed between said bearin s and seats.

15. n a drill, the combination of a body or casing, a reciprocating drill-spindle mountedtherein, a motor for actuating said spindle, trunnions on said motor, bearings for said trunnions, seats in the casing for receiving said bearings and spring-pressed eiaoi plungers mounted in said seats and contactmg with said bearings;

. 16. In a drill, the combination of a movable body or casing, a drill-spindle mounted therein, a motor for actuating said spindle,

trunnions on said motor, bearings for receiving said trunnions, a movable cap for said bearings, and spring-pressed plungers mounted in said bearings and caps and bearing against said trunnions.

17. In a drillfthe combination of a movable body orcasing, a reciprocating drillspindle'therein, an actuating-motor mounted.

on the casing 'with its shaft transverse to the line of reciprocation of the drill-spindle, trunnions on the motor at right angles to it's shaft,

and cushioning means arranged to cushion the movement of the motor both transversely and axially of said-trunnions.

18. In a drill, the combination of a movable body, or casing, a reciprocating drillspindle mounted. therein, a motor flexibly mounted on.- said casing, gearingconnecting the'motor-shaft with the drill-splndle, a flange,

or ring surrounding the end of the motorbody, and spring-pressed plates between said ring and the motor-body and serving to cushion the same; a

19., In a drill, the combination of a movable body or casing, areciprocating drill-- v spindle mounted therein, a motor trunnioned on said body, cushioning means for said trunnions, a ring surrounding theend of neck of the motor-body, s ring-pressed plates inter posed between sai ring andmotor-body, and gearing connecting the motor-shaft with said drill-spindle.

In testimony whereof I, the'sa id ROBERT BINNIE, S12, have hereunto'set my hand.

Witnesses: g I F. W. WINTER,

MARGARET (1. KEEBLE- ROBERT BINNIE, SR. 

